Podcast
Questions and Answers
What is the origin of the Gluteus Maximus?
What is the origin of the Gluteus Maximus?
posterior ilium and sacrum
Where does the Gluteus Maximus insert?
Where does the Gluteus Maximus insert?
gluteal tuberosity of femur and iliotibial tract
What is the action of the Gluteus Maximus?
What is the action of the Gluteus Maximus?
extend thigh and laterally rotate thigh
What innervates the Gluteus Maximus?
What innervates the Gluteus Maximus?
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What is the origin of the Gluteus Minimus?
What is the origin of the Gluteus Minimus?
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Where does the Gluteus Minimus insert?
Where does the Gluteus Minimus insert?
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What are the actions of the Gluteus Minimus?
What are the actions of the Gluteus Minimus?
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What innervates the Gluteus Minimus?
What innervates the Gluteus Minimus?
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What is the origin of the Gluteus Medius?
What is the origin of the Gluteus Medius?
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Where does the Gluteus Medius insert?
Where does the Gluteus Medius insert?
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What are the actions of the Gluteus Medius?
What are the actions of the Gluteus Medius?
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What innervates the Gluteus Medius?
What innervates the Gluteus Medius?
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What is the origin of the Tensor Fasciae Latae?
What is the origin of the Tensor Fasciae Latae?
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Where does the Tensor Fasciae Latae insert?
Where does the Tensor Fasciae Latae insert?
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What is the action of the Tensor Fasciae Latae?
What is the action of the Tensor Fasciae Latae?
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What innervates the Tensor Fasciae Latae?
What innervates the Tensor Fasciae Latae?
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What is the origin of the Piriformis?
What is the origin of the Piriformis?
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Where does the Piriformis insert?
Where does the Piriformis insert?
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What is the action of the Piriformis?
What is the action of the Piriformis?
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What innervates the Piriformis?
What innervates the Piriformis?
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Study Notes
Gluteal Muscles Overview
- The gluteal muscles consist of the gluteus maximus, gluteus medius, gluteus minimus, tensor fasciae latae, and piriformis.
- Each muscle has distinct origins, insertions, actions, and innervations important for understanding muscle function and anatomy.
Gluteus Maximus
- Origin: Posterior aspects of the ilium and sacrum.
- Insertion: Gluteal tuberosity of the femur and iliotibial tract.
- Action: Extends and laterally rotates the thigh; critical for actions like standing up and climbing stairs.
- Innervation: Innervated by the inferior gluteal nerve.
Gluteus Minimus
- Origin: Lateral surface of the ilium.
- Insertion: Greater trochanter of the femur.
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Action:
- Anterior fibers: Flex and medially rotate the thigh.
- Middle fibers: Abduct the thigh.
- Posterior fibers: Extend and laterally rotate the thigh.
- Innervation: Superior gluteal nerve.
Gluteus Medius
- Origin: Lateral surface of the ilium.
- Insertion: Greater trochanter of the femur.
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Action:
- Anterior fibers: Flex and medially rotate the thigh.
- Middle fibers: Abduct the thigh.
- Posterior fibers: Extend and laterally rotate the thigh.
- Innervation: Supplied by the superior gluteal nerve.
Tensor Fasciae Latae
- Origin: Iliac crest and anterior superior iliac spine.
- Insertion: Iliotibial tract, influencing knee stability.
- Action: Functions in thigh abduction and flexion; important for stabilizing the hip and knee during movement.
- Innervation: Also innervated by the superior gluteal nerve.
Piriformis
- Origin: Anterior surface of the sacrum.
- Insertion: Greater trochanter of the femur.
- Action: Primarily responsible for laterally rotating the thigh; assists with hip stabilization.
- Innervation: Innervated by the ventral rami of S1-S2 spinal nerves.
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Description
Test your knowledge on the gluteal muscles with this set of flashcards covering their origins, insertions, actions, and innervation. Perfect for students of anatomy or anyone looking to improve their understanding of these key muscle groups.
